More patcher tests and fixes

core/src/mindustry/mod/ContentParser.java

@@ -55,9 +55,9 @@ import static mindustry.Vars.*;
 public class ContentParser{
     private static final boolean ignoreUnknownFields = true;
     private static final ContentType[] typesToSearch = {ContentType.block, ContentType.item, ContentType.unit, ContentType.liquid, ContentType.planet};
+    static final ObjectSet<Class<?>> implicitNullable = ObjectSet.with(TextureRegion.class, TextureRegion[].class, TextureRegion[][].class, TextureRegion[][][].class);
 
     ObjectMap<Class<?>, ContentType> contentTypes = new ObjectMap<>();
-    ObjectSet<Class<?>> implicitNullable = ObjectSet.with(TextureRegion.class, TextureRegion[].class, TextureRegion[][].class, TextureRegion[][][].class);
     Seq<ParseListener> listeners = new Seq<>();
 
     ObjectMap<Class<?>, FieldParser> classParsers = new ObjectMap<>(){{
@@ -97,7 +97,7 @@ public class ContentParser{
                 }
             }
         });
-        put(TextureRegion.class, (type, data) -> Core.atlas.find(data.asString()));
+        put(TextureRegion.class, (type, data) -> Core.atlas == null ? null : Core.atlas.find(data.asString()));
         put(Color.class, (type, data) -> Color.valueOf(data.asString()));
         put(StatusEffect.class, (type, data) -> {
             if(data.isString()){

core/src/mindustry/mod/ContentPatcher.java

@@ -9,8 +9,11 @@ import arc.util.serialization.Jval.*;
 import mindustry.*;
 import mindustry.core.*;
 import mindustry.ctype.*;
+import mindustry.entities.part.*;
+import mindustry.type.*;
 import mindustry.world.*;
 import mindustry.world.consumers.*;
+import mindustry.world.draw.*;
 
 import java.lang.reflect.*;
 import java.util.*;
@@ -99,6 +102,25 @@ public class ContentPatcher{
         }
     }
 
+    void created(Object object, Object parent){
+        if(!Vars.headless){
+            if(object instanceof DrawPart part && parent instanceof MappableContent cont){
+                part.load(cont.name);
+            }else if(object instanceof DrawBlock draw && parent instanceof Block block){
+                draw.load(block);
+            }else if(object instanceof Weapon weapon){
+                weapon.load();
+                weapon.init();
+            }else if(object instanceof Content cont){
+                cont.load();
+            }
+        }else{
+            if(object instanceof Weapon weapon){
+                weapon.init();
+            }
+        }
+    }
+
     void assign(Object object, String field, Object value, @Nullable FieldData metadata, @Nullable Object parentObject, @Nullable String parentField) throws Exception{
         if(field == null || field.isEmpty()) return;
 
@@ -252,7 +274,7 @@ public class ContentPatcher{
 
                 var fobj = object;
                 assignValue(object, field, new FieldData(fdata), () -> Reflect.get(fobj, fdata.field), fv -> {
-                    if(fv == null && !fdata.field.isAnnotationPresent(Nullable.class)){
+                    if(fv == null && !fdata.field.isAnnotationPresent(Nullable.class) && !(Vars.headless && ContentParser.implicitNullable.contains(fdata.field.getType()))){
                         warn("Field '@' cannot be null.", fdata.field);
                         return;
                     }
@@ -292,11 +314,15 @@ public class ContentPatcher{
                 }
 
                 if(modify) modifiedField(object, field, getter.get());
+
+                //HACK: listen for creation of objects once
+                Vars.mods.getContentParser().listeners.add((type, jsonData, result) -> created(result, object));
                 try{
                     setter.get(json.readValue(metadata.type, metadata.elementType, jsv));
                 }catch(Throwable e){
                     warn("Failed to read value @.@ = @: @ (type = @ elementType = @)\n@", object, field, value, e.getMessage(), metadata.type, metadata.elementType, Strings.getStackTrace(e));
                 }
+                Vars.mods.getContentParser().listeners.pop();
             }else{
                 //assign each field manually
                 var childFields = json.getFields(prevValue.getClass().isAnonymousClass() ? prevValue.getClass().getSuperclass() : prevValue.getClass());

core/src/mindustry/world/draw/DrawRegion.java

@@ -1,6 +1,7 @@
 package mindustry.world.draw;
 
 import arc.*;
+import arc.graphics.*;
 import arc.graphics.g2d.*;
 import arc.util.*;
 import mindustry.entities.units.*;
@@ -11,6 +12,9 @@ import mindustry.world.*;
 public class DrawRegion extends DrawBlock{
     public TextureRegion region;
     public String suffix = "";
+    /** If set, overrides the region name. */
+    public @Nullable String name;
+    public @Nullable Color color;
     public boolean spinSprite = false;
     public boolean drawPlan = true;
     public boolean buildingRotate = false;
@@ -40,11 +44,13 @@ public class DrawRegion extends DrawBlock{
     public void draw(Building build){
         float z = Draw.z();
         if(layer > 0) Draw.z(layer);
+        if(color != null) Draw.color(color);
         if(spinSprite){
             Drawf.spinSprite(region, build.x + x, build.y + y, build.totalProgress() * rotateSpeed + rotation + (buildingRotate ? build.rotdeg() : 0));
         }else{
             Draw.rect(region, build.x + x, build.y + y, build.totalProgress() * rotateSpeed + rotation + (buildingRotate ? build.rotdeg() : 0));
         }
+        if(color != null) Draw.color();
         Draw.z(z);
     }
 
@@ -65,6 +71,6 @@ public class DrawRegion extends DrawBlock{
 
     @Override
     public void load(Block block){
-        region = Core.atlas.find(block.name + suffix);
+        region = Core.atlas.find(name != null ? name : block.name + suffix);
     }
 }